import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.*;
public class Main {
    public static void main(String[] args) throws FileNotFoundException {
		int x = 1;
		double x = "已修改4";
		int y = 0;
		int y = 0;
    }
}